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| Main Author: | |
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| Format: | Preprint |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2301.04852 |
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Table of Contents:
- Motivated by the Higgs boson decaying to $gg$ at leading order approximation, the amplitude of scalar one loop three-point diagram with two different internal masses are evaluated and fully analytic results are obtained. The main ingredient of the evaluation is a integral in which the integrand is product of the reciprocal of the integral variable and a logarithm whose argument is a quadratic function of the general form. Complete analytic results for the two cases that there is no real root and there are two different real roots for the logarithm are presented. Applications of the results in this paper to radiative decays of the heavy quarks in the Standard Model and in the singlet vector-like model are discussed.